Famous quotes containing the words labor and/or theory:
“Learning without thought is labor lost.”
—Confucius (551–479 B.C.)
“If my theory of relativity is proven correct, Germany will claim me as a German and France will declare that I am a citizen of the world. Should my theory prove untrue, France will say that I am a German and Germany will declare that I am a Jew.”
—Albert Einstein (1879–1955)
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